7151572215145 has 16 divisors (see below), whose sum is σ = 8590566233088. Its totient is φ = 5715474170560.

The previous prime is 7151572215121. The next prime is 7151572215149. The reversal of 7151572215145 is 5415122751517.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-7151572215145 is a prime.

It is a super-2 number, since 2×7151572215145² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7151572215095 and 7151572215104.

It is not an unprimeable number, because it can be changed into a prime (7151572215149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20646927 + ... + 20990443.

It is an arithmetic number, because the mean of its divisors is an integer number (536910389568).

Almost surely, 2^{7151572215145} is an apocalyptic number.

It is an amenable number.

7151572215145 is a deficient number, since it is larger than the sum of its proper divisors (1438994017943).

7151572215145 is a wasteful number, since it uses less digits than its factorization.

7151572215145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347720.

The product of its digits is 490000, while the sum is 46.

The spelling of 7151572215145 in words is "seven trillion, one hundred fifty-one billion, five hundred seventy-two million, two hundred fifteen thousand, one hundred forty-five".